Pulsed laser deposition (PLD) is a unique method for growing highly stoichiometric, materials in the form of epitaxial thin films. Here we discuss the optimization of deposition parameters for laser ablation of multi-component La0.7Ca0.3MnO3-YBa2Cu3O7-delta (LCMO-YBCO) heterostructures grown in situ by sequential deposition of LCMO and YBCO on (100) LaAlO3 (LAO) substrates using a PLD system. We discuss the growth of these multi-layers, from the device applications point of view.